I had no idea, so when i was looking around for full synthetic 30w there was only the 0w-30w and I just said to myself "that's a strange way to say straight 30w, why not just call it straight 30w?" so I bought it thinking that's what I was buying lol.
now i know they don't call it straight 30w because its not straight 30w.
i always say, your never too smart to do dumb things or too smart to need to learn new things so ask and listen to advice from others.
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